Portable electrical generator

ABSTRACT

An electrical generator is provided. The electrical generator can include a generator, an electric motor, and a battery. The generator has a rotatable shaft and stationary component and be operatively coupled via a drive belt to the motor, which provides torque to the rotatable shaft of the generator The battery is operatively coupled to the motor. The generator can be operatively coupled to a utility grid via a transformer/invertor that can import current from the utility grid to charge the battery when the utility grid is operating and export current from the generator to a grid connector when the utility grid is not operating.

CROSS REFERENCE TO RELATED APPLICATIONS

This is a continuation-in-part of U.S. patent application Ser. No.17/649,189, filed on Jan. 27, 2022, which is a continuation-in-part ofU.S. patent application Ser. No. 15/856,272, filed on Dec. 28, 2017, thecontents of which are relied upon and incorporated herein by referencein their entirety, and the benefit of priority under 35 U.S.C. § 120 ishereby claimed.

FIELD

The present disclosure generally relates to an electrical generator, andmore particularly to a portable electrical generator having an electricmotor and a transportable electric generator comprising the portableelectrical generator.

BACKGROUND

Existing portable electrical generators utilize an internal combustionengine to produce electrical power. Internal combustion engines produceundesirable noises and noxious fumes from burning fuel (e.g., gasoline,diesel, natural gas, propane, biodiesel, water, sewage gas, hydrogen).As a result, electrical generators having an internal combustion engineare not suitable for indoor use. And generally, internal combustionengines are less than 50% efficient with respect to converting heat intomechanical energy. For the foregoing reasons, there is a need for animproved portable electrical generator that can be used to generateelectricity indoors for the purpose of powering a domicile or otherbuilding and/or to charge one or more electric appliances or devices.And there is a need for a transportable electric generator that can beused in an outdoor area for the purpose of charging one or more electricvehicles.

SUMMARY

In various embodiments, an electrical generator is provided. In someembodiments, the electrical generator, comprises a generator comprisinga rotatable shaft and stationary component, the generator beingoperatively coupled via a drive belt to an electric motor; wherein theelectric motor provides torque to the rotatable shaft of the generator;and a battery operatively coupled to the electric motor, wherein theelectric motor derives power from the battery; and a battery chargeroperatively coupled to the battery, wherein the battery charger isconfigured to supply current to the battery; wherein the generator isconfigured to be operatively coupled to a utility grid using atransformer/invertor that is configured to import current from theutility grid, optionally to charge the battery, when the utility grid isoperating and to export current from the generator to a grid connectorwhen the utility grid is not operating.

In various embodiments, a transportable electric generator is provided.In some embodiments, the transportable electric generator comprises anelectrical generator comprising: a generator comprising a rotatableshaft and stationary component, the generator being operatively coupledvia a drive belt to an electric motor; wherein the electric motorprovides torque to the rotatable shaft of the generator; and a batteryoperatively coupled to the electric motor, wherein the electric motorderives power from the battery; and a battery charger operativelycoupled to the battery, wherein the battery charger is configured tosupply current to the battery; wherein the generator is configured to beoperatively coupled to a utility grid using a transformer/invertor thatis configured to import current from the utility grid, optionally tocharge the battery, when the utility grid is operating and to exportcurrent from the generator to a grid connector when the utility grid isnot operating; and a housing configured to contain the electricalgenerator and for transportability, the housing comprising an electricplug for coupling the electrical generator to the utility grid.

It is to be understood that both the foregoing general description andthe following detailed description describe various embodiments and areintended to provide an overview or framework for understanding thenature and character of the claimed subject matter. The accompanyingdrawings are included to provide a further understanding of the variousembodiments and are incorporated into and constitute a part of thisspecification. The drawings illustrate the various embodiments describedherein and, together with the description, explain the principles andoperations of the claimed subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS

A complete understanding of the present embodiments and the advantagesand features thereof will be more readily understood by reference to thefollowing detailed description, appended claims, and accompanyingdrawings, wherein:

FIG. 1 is a schematic diagram of an electrical generator, in accordancewith some embodiments described herein;

FIG. 2 is a schematic diagram of an alternative electrical generator, inaccordance with some embodiments described herein;

FIG. 3 is a rear perspective view of a transportable electricalgenerator, in accordance with some embodiments described herein;

FIG. 4 is a front perspective view of the transportable electricalgenerator of FIG. 3;

FIG. 5A is a zoomed-in view of a shared portion of FIGS. 1 and 2;

FIG. 5B is an alternate embodiment of the components in FIG. 5A; and

FIG. 5C is a further alternative embodiment of the components in FIG.5A.

The drawings are not necessarily drawn to scale, and certain featuresand certain views of the drawings may be shown exaggerated in scale orin schematic in the interest of clarity and conciseness.

DETAILED DESCRIPTION

Reference will now be made in detail to the exemplary embodiment(s),examples of which are illustrated in the accompanying drawings. Thedescription of the embodiments is intended to be read in connection withthe accompanying drawings. Whenever possible, the same referencecharacters will be used throughout the drawings to refer to the same orlike parts.

Before describing the exemplary embodiments, it is noted the embodimentsreside primarily in combinations of components and procedures related tothe apparatus. Accordingly, the apparatus components have beenrepresented where appropriate by conventional symbols in the drawings,showing only those specific details that are pertinent to understandingthe embodiments of the present disclosure so as not to obscure thedisclosure with details that will be readily apparent to those ofordinary skill in the art having the benefit of the description herein.

The specific details of the various embodiments described herein areused for demonstration purposes only, and no unnecessary limitation orinferences are to be understood therefrom. Furthermore, as used herein,relative terms such as “horizontal,” “vertical,” “up,” “down,” “top,”“bottom,” and the like, as well as derivatives thereof (e.g.,“horizontally,” “downwardly,” “upwardly,” etc.) should be construed torefer to the orientation as then described or as shown in the drawingfigure under discussion. These terms are for convenience of descriptionand normally are not intended to require a particular orientation. Termsincluding “inwardly” versus “outwardly,” “longitudinal” versus “lateral”and the like are to be interpreted relative to one another or relativeto an axis of elongation, or an axis or center of rotation, asappropriate. Terms concerning attachments, coupling and the like, suchas “connected” and “interconnected,” refer to a relationship whereinstructures are secured or attached to one another either directly orindirectly through intervening structures, as well as both moveable orrigid attachments or relationships, unless expressly describedotherwise, and includes terms such as “directly” coupled, secured, etc.The term “operatively coupled” is such an attachment, coupling, orconnection that allows the pertinent structures to operate as intendedby virtue of that relationship.

In various embodiments, as shown in FIGS. 1-5C, a portable electricalgenerator is provided. In some embodiments, as shown in FIG. 1, theelectrical generator 20 comprises a generator 114, an electric motor108, and a battery 104. In some embodiments, the generator 114 isconnected to the electrical motor 108 via the drive belt 110.

The generator 114 can be any suitable generator, whereby the suitabilityof the generator is restricted by the desired size of the portableelectrical generator 20 and the amount of electrical power needed for apredetermined purpose. In some embodiments, the generator 114 comprisesa rotatable shaft 124 (e.g., a rotor) and a stationary component 115(e.g., a stator). In such embodiments, the rotatable shaft 124 rotatesabout the axis defined by its longitudinal structure. In someembodiments, energy flows through the stationary component 115 to andfrom the rotatable shaft 124. In some embodiments, the stationarycomponent 115 is configured to convert the rotating magnetic fieldproduced by the rotatable shaft 124 into electric current. In suchembodiments, the torque is produced around the longitudinal axis of therotatable shaft 124.

In some embodiments, in which the electrical power generated is for asmall-sized domicile or building (e.g., a one- or two-bedroom apartmentor condominium unit) the generator 114 is configured to provide power inthe range of about 800 to about 3000 watts, including, for example,about 1000 watts, about 1500 watts, about 2000 watts, about 2500 watts,etc. In some embodiments, in which the electrical power generated is fora medium-sized domicile or building (e.g., a larger apartment orcondominium unit, or two- or three-bedroom house) the generator 114 isconfigured to provide about 3000 to about 7000 watts, including, forexample, about 3500 watts, about 4000 watts, about 5000 watts, about6500 watts, etc. In some embodiments, in which the electrical powergenerated is for a large-sized domicile or building (e.g., an apartmentor condominium building, or four- to eight-bedroom house) the generator114 is configured to provide about 7000 to about 11000 watts, including,for example, about 7500 watts, about 8000 watts, about 9000 watts, about10000 watts, etc.

The electric motor 108 can be any suitable electric motor. In someembodiments, as shown in FIG. 1, for example, the electric motor 108comprises a rotor 107 and a stator 109. In such embodiments, the rotor107 rotates about its longitudinal axis and the stator 109 remainsstationary to create an air gap between its inner surface and componentsand the rotor 107. In such embodiments, the stator 109 provides amagnetic field that drives the rotor 107. In some embodiments, duringuse, the electrical motor 108 provides the rotational torque to therotatable shaft 124, which is used to build a flow of current inside thegenerator 114. In some embodiments, the current can then flow out ofcircuitry 128 to the main grid connector 118 managing the electricalload to the domicile or building.

In some embodiments, the generator 114 and the electric motor 108 areconfigured to operate at one or more speeds, including one or morepredetermined speeds. In such embodiments, selection of the speed can becontrolled by the user via the control panel or computer 150. In someembodiments the generator 114 and the electric motor 108 are configuredto operate at one to ten different speeds, or two to eight differentspeeds, or three to six different speeds, or four to five differentspeeds. In some embodiments, for example, the generator 114 and theelectric motor 108 are configured to operate at four speeds. In suchembodiments, the first speed produces about 25 watts, the second speedproduces about 50 watts, the third speed produces about 75 watts, andthe fourth speed produces about 100 watts. In some embodiments, thespeed is selected manually. For example, the user can enter or selectthe desired speed via the interface on the control panel or computer150. In some embodiments, the speeds are automatically selected by thecontrol panel or computer 150 based on the information obtained from theelectrical generator 20. In such embodiments, the control panel orcomputer 150 comprises the logic necessary for controlling the outputspeed based on the information obtained.

The battery 104 can be any suitable battery, in which the suitability isbased on requirements of the electric motor 108. For example, in someembodiments, the electric motor 108 receives an electric current fromthe battery 104, as shown in FIG. 1, or a plurality of batteries in abattery bank (omitted for clarity; additional batteries can be coupledtogether in series). In some embodiments, the electric current isprovided from a single battery 104. In some embodiments, the battery 104is a rechargeable battery. In some embodiments, the battery 104 is a 12V(volt) automotive battery. In some embodiments, the battery 104 is adeep cycle battery, such as a rechargeable lithium-ion battery (e.g., abattery used in a golf cart). In some embodiments, during use, thebattery 104 functions by providing the necessary electrical energy toget the electric motor 108 started and running.

In an alternative embodiment, power to the electric motor 108 mayoriginate from a solar panel (not shown), either alone or in combinationwith the battery 104.

Any suitable drive belt 110 can be used, whereby the suitability of thedrive belt 110 is based on the size of the rotatable shaft 124 andtorque produced by the same, the size of the rotor 107 and the torqueproduced by the same, the distance between the electric motor 108 andthe generator 114, and/or any other consideration including, e.g., theanticipated periods of use, temperatures of the areas of use, and/orproperties of the belt material.

In some embodiments, as shown in FIG. 5A, for example, the drive belt110 a and the corresponding rotor 107 a each comprise a smoothcontacting surface. In alternative embodiments, as shown in FIG. 5B, forexample, the drive belt 110 b and the corresponding rotor 107 b comprisereciprocal longitudinal, spaced-apart bands on their respectivecontacting surfaces. The reciprocal bands provide additional,three-dimensional surfaces to reduce the chance of the drive belt 110 bbecoming disconnected from the rotor 107 b. In alternative embodiments,as shown in FIG. 5C, the drive belt 110 c and the corresponding rotor107 c comprise reciprocal transverse, spaced-apart bands on theirrespective contacting surfaces. The reciprocal bands provide additional,three-dimensional surfaces to reduce the chance of the drive belt 110 cbecoming disconnected from the rotor 107 c. Although the alternativeembodiments in FIGS. 5A, 5B, and 5C are directed to the drive belt 110 band the corresponding rotor 107 b, the same alternative configurationsmay be applied to the belts 112 and 122, when present, and the rotatableshafts 123 and 124.

In some embodiments, the electrical generator 20 further comprises abattery charger 102 for recharging the battery 104. In some embodiments,the control panel or computer 150 can monitor the level of charge in thebattery 104 and signal instructions to the battery charger 102 to sendcurrent to the battery 104 for the purpose of recharging the battery. Insome embodiments, the battery charger 102 is connected to the rotor 124via the drive belt 112. In other embodiments, the drive belt 112 isomitted and the battery charger 102 receives power from, e.g., amicrocontroller (not shown) or an independent battery (not shown).

During use, the control panel or computer 150 is programed to indicatewhen the charge of the battery 104 reaches a predetermined threshold.The predetermined charge threshold can be any suitable level, in whichthe suitability is based on the attributes of the battery 104 (e.g.,type, age, condition, specifications). In some embodiments, for example,the predetermined charge threshold is a remaining charge in the range ofabout 5% to about 60%, from about 10% to about 50%, from about 15% toabout 40%, from about 20% to about 30%, etc. In this context, the term“about” refers to ±3%. In some embodiments, the control panel orcomputer 150 is configured to signal that the level of charge measuredon the battery 104 has reached about 100%, which will cause the batterycharger 102 to power down.

In some embodiments, the electrical generator 20 further comprises acombined transformer/invertor 126. In such embodiments, the transformercomponent of the combined transformer/invertor 126 functions bytransferring electrical energy from one electrical circuit to anothercircuit. In FIG. 1, for example, the electrical energy produced by thegenerator 114 can be transferred to the main grid connector 118 via theelectric power switch 116. In such embodiments, the invertor componentof the combined transformer/invertor 126 functions to convert power froma direct current (DC) source into alternating current (AC) power. Insome embodiments, during use, the electric power switch 116 isconfigured to turn on/off power to the electrical generator 20 whenpower is restored to the domicile or building utilizing the electricalgenerator 20. In some embodiments, the electric power switch 116comprises a manual switch component for manually turning on/off the flowof current to or from the main grid connector 118 and thetransformer/invertor 126.

In some embodiments, the transformer/invertor 126 can function such thatthe electrical generator 20 receives and imports current from theutility grid to charge the battery 104 when the utility grid isoperating, e.g., under normal conditions, and to deliver or exportcurrent from the generator 20 to a grid connector when the utility gridis not operating or is operating at below normal conditions.

In some embodiments, during use, while the main grid connector 118 isproperly energized, the power switch 116 transmits current over thetransformer/invertor 126 to the battery 104. In some embodiments, whenthe transformer/invertor 126 detects that the battery 104 has reached aproper voltage level across its terminals, the transformer/invertor 126interrupts the flow of current to the battery 104.

In some embodiments, as shown in FIGS. 1, 2, and 4, the electricalgenerator 20/30/40 further comprises the receptacle 140 for receivingthe plug of an electrical device. The receptacle 140 can be used in thesame manner as existing receptacles in a domicile, in which the plug ofan electrical device is inserted into the corresponding openings of thereceptacle. In some embodiments, the receptacle 140 is configured toreceive the plug of an electric vehicle.

In some embodiments, as shown in FIGS. 1-4, the electrical generator 20further comprises the control panel or computer 150. In someembodiments, the control panel or computer 150, being wired directly orindirectly to each of the components of the electrical generator20/30/40, can be configured to monitor, analyze, and display thefunctional status of the components. For example, the control panel orcomputer 150 can indicate which component may need to be serviced orreplaced. For example, the control panel or computer 150 can display thelevel of charge in the battery 104. In some embodiments, the controlpanel or computer 150 can be configured to instruct one or morecomponents to function. For example, the control panel or computer 150can instruct the transformer 126 to send step-down current to thebattery 104 for the purpose of recharging the battery. In someembodiments, the control panel or computer 150 is further connected,either directly or indirectly, to the main grid connector 118 managingthe electrical load to the domicile or building. In such embodiments,the control panel or computer 150 displays the amount of currentreceived from the main grid that can be transmitted to through the maingrid connector 118 to the electrical generator 20.

In some embodiments, as shown in FIG. 2, the electrical generator 30further comprises a turbine engine or secondary electric motor 120. Insuch embodiments, the turbine engine or secondary electric motor 120 canfunction as a second generator or as a second motor to drive thegenerator 114. In some embodiments, the current generated by the turbineengine or secondary electric motor 120 can be transmitted to thecircuitry (not shown) via the stator 121. In such embodiments, the rotor123 is connected to the rotatable shaft 124 of the generator 114 via thedrive belt 122.

In various embodiments, as shown in FIGS. 3 and 4, a transportableelectric generator 40 is provided. In some embodiments, thetransportable electric generator 40 comprises the electrical generator20 or the electrical generator 30 and a housing 42 configured to containthe electrical generator 20/30. In some embodiments, the housing 42comprises access to the control panel or computer 150. In someembodiments, the housing 42 further comprises a plurality of wheels 144for portability (e.g., two wheels as shown in FIGS. 3 and 4; or threewheels (not shown); or four wheels (not shown)). In some embodiments,the housing 42 further comprises a light 155 (e.g., LED light) forassisting the user in a dark environment.

In various embodiments, the receptacle 140 of the electrical generator20/30 is mounted to the housing 42 in a manner accessible to the user,whereby the receptacle 140 is configured to receive the plug of anelectric vehicle and/or an electric device. In some embodiments, thetransportable electric generator 40 further comprises a plurality ofreceptables for electric or electronic devices. For example, as shown inFIG. 4, the housing comprises a panel of electrical receptables 140 and142 a-142 d on the panel 135.

In some embodiments, as shown in FIG. 3, the transportable electricgenerator 40 further comprises the electric plug 160, which is attachedvia an electric cord. In some embodiments, the control panel or computer150 can be configured to measure the current received from the main gridconnector 118 and that will be transmitted to the electrical generator20/30. In some embodiments, the control panel or computer 150 isconfigured to communicate the absence of power in the domicile. Forexample, if the power to the domicile has been temporarily discontinued,then the control panel or computer 150 is configured to signal when thepower to the domicile has been restored. In such embodiments, when thecontrol panel or computer 150 determines that power has been restored tothe domicile, the electrical generator 20/30 will be turned off.

In some embodiments, the transportable electric generator 40 furthercomprises a manual switch for powering the system on or off. In suchembodiments, the manual switch may be positioned on the control panel orcomputer 150 or on the panel 135 (FIG. 4). In such embodiments, the userwould not need to rely exclusively on the control panel or computer 150.For example, if power service was discontinued to a domicile and thenrestored, the user would generally be aware that power was restored andcould use the switch to turn the transportable electric generator 40off.

The transportable electric generator 40 and associated housing 42 can beany suitable size and have any suitable shape. In this context, thesuitability of the size and shape is based on the capability of beingoperatively transportable. For example, in some embodiments, the sizeand weight of the housing 42 is configured to allow the user totransport the housing 42 about a ground surface (e.g., sidewalk, grass),or to allow the user to lift the transportable electric generator 40into a vehicle, up/down a set of stairs, down the hallway of a domicile,etc. In such embodiments, the materials used to create the housing 42are preferably lightweight and durable for the desired purposes,including transportability.

In some embodiments, the electrical generator disclosed herein is smallenough for utilization in a small home, apartment, or condominium. Theelectrical generator stores energy in batteries and can be powered by apower outlet. The electrical generator can utilize one or more electricmotors to produce energy, which is stored in the batteries. Theelectrical generator can be used as a stand-alone unit that can receivea plug connected to an electrical device in the event of a power outage.The electrical generator can be hard-wired into the electrical circuitryof the domicile, and therefore function as a backup power source in theevent of a power outage. In such embodiments, the electrical generatorwill recharge the battery during operation.

In some embodiments, the electrical generator disclosed herein utilizespower from a traditional power source. For example, the electricalgenerator can be plugged into an outlet or directly connected to circuitbox. In such embodiments, the electrical generator can be used to powerelectrical devices in the event of a power outage. The electricalgenerator does not use gas, oil, or any other type of fuel, andtherefore produces no carbon-based emissions. In such embodiments, theelectrical generator provides a clean and reliable source of energy fora domicile.

In some embodiments, when the electrical generator disclosed herein isused for small home, apartment, or condominium, it is small enough insize to fit into a closet. As an indoor unit, the electrical generatordescribed herein is advantageous because it minimizes noise andeliminates the emission of noxious fumes.

In some embodiments, the electrical generator is designed to serve as abackup generator during a power outage. The electrical generator can bewired into the main grid supply line to charge onboard batteries whilethe grid is operating normally. If the current flow over the grid drops,a switch over which the generator has been connecting to the grid istripped to power the generator and restore electricity to the internalcircuitry of the apartment unit. In some embodiments, the electricalgenerator motor may be powered by a battery or battery pack. In someembodiments, the electrical generator may have a connection to anexternal solar panel that is wired to either recharge the batteries orto provide current directly to the generator. In such embodiments, theelectrical generator will recharge the battery during operation.

Exemplary embodiments of the device are described above in detail. Thedevice is not limited to the specific embodiments described herein, butrather, the device may be utilized independently and separately from theother components described herein.

Although specific features of the present embodiments may be shown insome drawings and not in others, this is for convenience only. Inaccordance with the principles of the disclosure, any feature of adrawing may be referenced and/or claimed in combination with any featureof any other drawing.

The foregoing is provided for purposes of illustrating, explaining, anddescribing embodiments of this disclosure. Modifications and adaptationsto these embodiments will be apparent to those skilled in the art andmay be made without departing from the scope or spirit of thisdisclosure.

Although the subject matter has been described in terms of exemplaryembodiments, it is not limited thereto. Rather, the appended claimsshould be construed broadly, to include other variants and embodiments,which may be made by those skilled in the art.

I/We claim:
 1. An electrical generator, comprising: a generatorcomprising a rotatable shaft and stationary component, the generatorbeing operatively coupled via a drive belt to an electric motor; whereinthe electric motor provides torque to the rotatable shaft of thegenerator; and a battery operatively coupled to the electric motor,wherein the electric motor derives power from the battery; and a batterycharger operatively coupled to the battery, wherein the battery chargeris configured to supply current to the battery; wherein the generator isconfigured to be operatively coupled to a utility grid using atransformer/invertor that is configured to import current from theutility grid when the utility grid is operating and to export currentfrom the generator to a grid connector when the utility grid is notoperating.
 2. The electrical generator of claim 1, further comprising asecondary motor.
 3. The electrical generator of claim 2, wherein thesecondary motor is operatively coupled to the stationary component; andwherein the secondary motor configured to be used in parallel with thegenerator to generate electric current or as a driver for the generator.4. The electrical generator of claim 1, further comprising a controlpanel for operating and monitoring components of the electricalgenerator.
 5. The electrical generator of claim 1, wherein the batterycharger is operatively coupled to the generator via a second drive belt.6. The electrical generator of claim 4, wherein the battery charger isin communication with the control panel, and the control panel isconfigured to indicate a level of charge remaining in the battery. 7.The electrical generator of claim 6, wherein the control panel isconfigured to provide manual override commands to the generator.
 8. Theelectrical generator of claim 1, wherein the generator is configured toprovide about 1000 watts of power.
 9. The electrical generator of claim1, wherein the generator is configured to provide about 3000 watts ofpower.
 10. The electrical generator of claim 1, wherein the generator isconfigured to provide about 7000 watts of power.
 11. The electricalgenerator of claim 1, wherein the electric motor comprises a rotor andstator.
 12. The electrical generator of claim 1, wherein electricityderived from the generator is converted via the transformer/invertorinto AC power for powering a domicile or electric device.
 13. Atransportable electric generator, comprising: an electrical generatorcomprising: a generator comprising a rotatable shaft and stationarycomponent, the generator being operatively coupled via a drive belt toan electric motor; wherein the electric motor provides torque to therotatable shaft of the generator; and a battery operatively coupled tothe electric motor, wherein the electric motor derives power from thebattery; and a battery charger operatively coupled to the battery,wherein the battery charger is configured to supply current to thebattery; wherein the generator is configured to be operatively coupledto a utility grid using a transformer/invertor that is configured toimport current from the utility grid when the utility grid is operatingand to export current from the generator to a grid connector when theutility grid is not operating; and a housing configured to contain theelectrical generator and for transportability, the housing comprising anelectric plug for coupling the electrical generator to the utility grid.14. The transportable electric generator of claim 13, wherein thehousing further comprises a control panel or computer for operating theelectrical generator.
 15. The transportable electric generator of claim13, wherein the housing further comprises one or more receptaclesconfigured to receive an electric plug from an electric vehicle ordevice.
 16. The transportable electric generator of claim 13, whereinthe electrical generator further comprises a secondary motor; whereinthe secondary motor is operatively coupled to the stationary componentof the generator; and wherein the secondary motor configured to be usedin parallel with the generator to generate electric current or toprovide power for the generator.
 17. The electrical generator of claim14, wherein the battery charger is in communication with the controlpanel, and the control panel is configured to indicate a level of chargeremaining in the battery.
 18. The transportable electric generator ofclaim 13, wherein the generator is configured to provide about 1000watts of power.
 19. The transportable electric generator of claim 13,wherein the generator is configured to provide about 3000 watts ofpower.
 20. The transportable electric generator of claim 13, wherein thegenerator is configured to provide about 7000 watts of power.